* { padding: 0; margin: 0; font-family: sans-serif; }

body {
    border-top: 4px solid #ff6a00;
    background-color: #fff;
}
.githubCorner {
    color: #fff;
    fill: #ff6a00;
    position: absolute;
    top: 0;
    border: 0;
    right: 0;
}

.square {
    width: 100px;
    height: 100px;
    background-color: #ff6a00;
    display: inline-block;
    margin: 15px;
}

h2 {
    text-align: center;
    margin-bottom: 30px;
    padding: 0 10px;
}

style {
    max-width: 80%;
    margin: auto;
    color: #222222;
    background: #ddd; 
    border-radius: 10px;
    padding: 5%;
    box-sizing: border-box; 
}